DSD

The following DSD related FCI commands are only available using the USC-3-DSD firmware (Cur. Sys. ID: 0x0001000#):

Command	Description
DSD ERROR	Get error flag.
DSD INIT	Initialize DSD.
DSD MAP	Set/Get USC output pin mapping of DSD status.
DSD RMSLIMIT	Set/Get RMS threshold.
DSD SLC	Set/Get various SLC settings.
DSD VALUE	Get DSD values.

Table 127: Overview Commands DSD

DSD ERROR Get error flag
Description	Get error flag of each axis. Possible error flags are: •0x1: RMS •0x2: Safe mode •0x4: Temperature too high (Temperature over 85 °C) •0x8: Power supply (Positive supply below +12 V or negative supply over -12 V) •0x10: DSD init
Example	Command	Return	Note
Example	DSD ERROR	0: 0 0	No error on X and Y axis
Notes	•DSD error can be mapped to USC output pin via DSD MAP. •Reset DSD error via DSD INIT.
Save	N/A
Restriction	•Command is not available for USC-2.
Errors	•1: Too many parameters •19: No DSD found

Table 128: DSD ERROR

DSD INIT Initialize DSD
Description	Initialize DSD and resets errors.
Example	Command	Return	Note
Example	DSD INIT	0:
Notes	•This command is required after hardware (USC-3 and DSD-2A) boot to reset the connection error and delay the laser signals due to model prediction.
Save	N/A
Restriction	•Command is not available for USC-2.
Errors	•1: Too many parameters •19: No DSD found

Table 129: DSD INIT

DSD MAP <Status> [<Output>] Get/Set USC output pin mapping of DSD status
Description	Set/Get USC output pin mapping of DSD status.
<Status>	Value: <string>	Function
<Status>	ERROR	Error flag of both galvos
<Output> [optional]	Value: <int>	Function
	empty	Get current output pin value in 2^(Output Bit -1)
	0	Disable USC output pin mapping of DSD status.
	[1, 65535]	Set output pin value in 2^(Output Bit -1). Available values for the output bit are [1; 16]. The pin to bit mapping of the outputs can be found in the SAMLight IO chapter.
Example	Command	Return	Note
	DSD MAP ERROR 64	0:	Map DSD error status to Digi_Out_0.
	DSD MAP ERROR	0: 64	Get output pin for DSD error status.
Notes	•Output = 1 cannot be used, it is reserved for marking active.
Save	•Changes are saved with SVG. •When not saved, changes are valid until the next reboot of the USC-3. •Saved changes are restored with LDG.
Restriction	•Command is not available for USC-2.
Errors	•1: Too many parameters •2: Too few parameters •8: Parameter out of range

Table 130: DSD MAP

DSD RMSLIMIT <Status> [<Value>] Get/Set RMS threshold
Description	Set/Get RMS threshold where the RMS status will be set.
<Status>	Value: <string>	Function
	ERROR	Error threshold

<Value> [optional]	Value: <int>	Function
	empty	Get RMS threshold.
	[0, 65536]	Set RMS threshold.
Example	Command	Return	Note
	DSD RMSLIMIT ERROR 50	0:	Set error threshold to 50 bit.
	DSD RMSLIMIT ERROR	0: 50	Get error threshold.
Notes	•Default value is 65536. •The RMS limits cannot be saved.
Save	N/A
Restriction	•Command is not available for USC-2.
Errors	•1: Too many parameters •2: Too few parameters •8: Parameter out of range •17: Wrong parameter type •19: No DSD found

Table 131: DSD RMSLIMIT

DSD SLC <Parameter> [<Value>] Get/Set various SLC settings
Description	Get/Set various Smart Laser Control (SLC) settings. SLC modulates the laser power depending on the real speed of the mirrors to reduce burn in effects.
<Parameter>	Value: <string>	Function
	ENABLE	SLC enable state: •0: disable •1: enable
	SHIFT	SLC time shift [0, 200] µs. Value is rounded to nearest 10µs.
	LOWERLIMIT	Lower limit of the SLC factor [0, 100] %.
<Value> [optional]	Value: <int>	Function
	empty	Get value of <Parameter>.
	value	Set value of <Parameter>.
Example	Command	Return	Note
	DSD SLC SHIFT 70	0:	Set SLC time shift to 70µs.
	DSD SLC SHIFT	0: 70	Get SLC time shift.
Notes	-
Save	N/A
Restriction	•Command is not available for USC-2.
Errors	•1: Too many parameters •2: Too few parameters •8: Parameter out of range •17: Wrong parameter type •19: No DSD found

Table 132: DSD SLC

DSD VALUE <Parameter> Get DSD values
Description	Get various current DSD values.
<Parameter>	Value: <string>	Function
	MAXRMS	Get highest RMS values [bit] of each axis in a 100 us window while laser is on. DSD INIT resets these values.
	MOVING	Get moving status of each axis.
	SUPPLY	Get positive and negative DSD supply voltage [V].
	POS	Get actual position [bit] of each axis.
	TARGETPOS	Get target position [bit] of each axis.
	TEMP	Get DSD temperature [°C].
	TRACKING	Get tracking status of each axis.
	VERSION	Get DSD firmware version.
Example	Command	Return	Note
	DSD VALUE TEMP	0:55.5	Current DSD temperature is 55.5 °C.
	DSD VALUE TRACKING	0:1 1	At the moment both galvos are tracking.
Notes	-
Save	N/A
Restriction	•Command is not available for USC-2.
Errors	•1: Too many parameters •2: Too few parameters •19: No DSD found

Table 133: DSD VALUE